Question

   Select CorpID,
    Convert(VarChar(2),Month(E.BeginDate)) + '/' + Convert(VarChar(4),Year(E.BeginDate)),
    Count(Year(e.BeginDate)) As 'total Screen'
    --Count(Month(E.CurrentBeginDate))
    From dbo.NonCalls E
    Where E.BeginDate between {d'2013-01-01'} and {d'2013-12-31'}
    Group By CorpID, Year(E.BeginDate),Month(E.BeginDate)

    Union ALL


    Select CorpID,
    Convert(VarChar(2),Month(E.CurrentBeginDate)) + '/' + Convert(VarChar(4),Year(E.CurrentBeginDate)),
    Count(Year(e.CurrentBeginDate)) As 'total Screen'
    --Count(Month(E.CurrentBeginDate))
    From dbo.Employee E
    Where E.CurrentBeginDate between {d'2013-01-01'} and {d'2013-12-31'}
    Group By CorpID, Year(E.CurrentBeginDate),Month(E.CurrentBeginDate)
    --Order By CorpID, Year(E.CurrentBeginDate), Month(E.CurrentBeginDate)

我将我的代码更改为此，现在我得到的数字我正在寻找唯一的问题是它没有排序我需要它按Corpid排序然后按日期01-02-03等我不太确定

how to get that accomplish any help would be greatly apreciated.

Answer 1

你在UNION的第二部分有2个CurrentBeginDate，导致那个返回5列，但第一部分只有4列

SELECT    
 CorpID ,
 CurrentBeginDate <--HERE,
 CONVERT(VARCHAR(2), MONTH(E.CurrentBeginDate)) + '/'
           + CONVERT(VARCHAR(4), YEAR(E.CurrentBeginDate)) AS CurrentBeginDate <--HERE,
 COUNT(YEAR(e.CurrentBeginDate)) AS 'total Screen' ,
 '' AS d1

正如错误消息所示，要使联合起作用，它需要从查询的所有部分返回相同数量的列。

Answer 2

作为对“关于对现在正确联合的数据进行排序的新问题的答案：

您需要将unioned结果集视为派生表，并使用您的订单从中进行选择。由

SELECT * 
  FROM (<your unioned query)
 ORDER BY CorpID
      ,Year(CurrentBeginDate)
      ,Month(CurrentBeginDate)

有关更完整的讨论，请参阅此处： TSQL ORDER-BY with a UNION of disparate datasets

可以让联盟正常工作

2 个答案: